Cutterhead assembly for clippers



Oct. 24, 1950 H. E. MELTZER 2,527,193 CUTTER HEAD ASSEMBLY FOR CLIPPERSFiled Jan. 24, 1947 4 Sheets-Sheet l INVENTOR HENRY E.MELTZER ATTORNEYSOct. 24, 1950 H. E. MELTZER 2,527,193

CUTTER HEAD ASSEMBLY FOR CLIPPERS 4 Sheets-Sheet 2 Filed Jan. 24, 1947ATTofiNEYs Oct. 24, 1950 H. E. MELTZER 2,527,193

CUTTER HEAD ASSEMBLY FOR CLIPPERS Filed Jan. 24, 1947 4 Sheets-Sheet 5 f0 Q- 7 6 I 7 I60 0 e m" y m n w ll... 0 i I: \0

INVENTOR HENRY EMELTZER 4,5 73 78 BY C ATTORNEY Oct. 24, 1950 H. E.MELTZER 2,527,193

CUTTER HEAD ASSEMBLY FOR CLIPPERS Filed Jan. 24, 1947 4 Sheets-Sheet 455 INVENTOR HENRY EMELTZER I I .1 BY f AT TO NEYS Patented Oct. 24, 1950GUT'IERHEAD ASSEMBLY FOR CLIPPERS Henry E. Meltzcr, Racine, Wis.,assignor to All-Over Manufacturing 00., Racine, Wis.

Application January 24, 1947, Serial No. 724,158

11 Claims. (01. 30-196) This invention appertains to electric hairclippers, dry shavers and the like and more particularly to novel meansfor releasibly holding a cutter head assembly in operative position onthe body of the clipper.

One of the primary objects of my invention is to provide a novel andsimple mechanism whereby the cutter head assembly can be quickly removedfrom the clipper body by the mere pressing down on the forward end ofthe assembly in a direction opposite to the usual line of force on theassembly, when the clipper is in use, so that different sizes of cutterhead assemblies can be quickly interchanged and cleaned.

Another salient object of my invention is to provide means for exertinga forward spring pressure on the cutter head assembly, so that upondownward rocking of the assembly to release the same from the body, theassembly wil1 be automatically forced forward to a release disengagedposition.

A further object of my invention is to provide a novel guide and. latchplate carried by the clipper body for detachably receiving the tang ofthe cutter head assembly, the tank and latching plate being providedwith an interengaging keeper slot and latch nose, means being providedon the latch plate for guiding the tang into proper latched positionover the latch nose.

A further important object of the invention is to provide resilientmeans, including a spring retaining plate, for holding the tang over thelatch nose and for forcibly urging the tang and cutter head assemblyforward to a released position, when the cutter head assembly ismanually rocked for lifting the tang and its keeper slot off of thelatch nose against the tension of said spring retaining plate.

A further object of my invention is to provide novel means for formingthe forward end of the guide and latch plate, whereby the forward endwill form an effective support for the clipper head assembly, when theassembly is in its operative position on the clipper body.

A still further object of my invention is to provide novel means forforming and associating the spring plate support for the movable bladeof the cutter head assembly and its guide and brace plate with the tang,whereby said plates will function to cooperate with the latch and guideplate and the spring retaining plate for facilitating the holding of theassembly in latched position and the releasing of the assembly when thesame is manually rocked.

A still further important object Of my invention is to provide means formanually operating the spring retaining plate from the exterior of theclipper body for releasing the clipper head whereby the retaining platecan be either actuated by pressure on the clipper head or by actuatingthe manual means.

A still further object of my invention is to provide novel means fordetachably connecting a cutter head assembly with a clipper body whichwill be durable and efiicient in use, one that will be easy to operateand one which can be incorpo- I with a clipper body, the section beingtaken substantially on the line ll of Figure 2 looking in the directionof the arrows.

Figure 2 is a fragmentary side elevational view of a clipper constructedin accordance with my invention with parts thereof in section, thesection being taken substantially on the line 22 of Figure 1 looking inthe direction of the arrows, the View showing the clipper head assemblyin its operative position on the body.

Figure 3 is a view similar to Figure 2, but showing the cutter headassembly rocked downwardly and the tang with its keeper slot liftedabove the latch nose or dog.

Figure 4 is a detail side elevational view of the clipper head assemblyremoved from the body, parts of the figure being shown broken away andin section.

Figure 5 is a detail top plan view of the cutter head assembly removedfrom the clipper body, parts of this figure being shown broken away toillustrate structural detail.

Figure 6 is a fragmentary detail longitudinal sectional view through theforward end-of the clipper body showing the novel guide and latch platefor the cutter assembly and the spring retaining and expulsion plate.

Figure 7 is a fragmentary longitudinal sectional view through theforward end of the clipper body, the view being taken at right angles toFigure 6 and showing the guide and latch plate and the spring retainingand expulsion plate in plan, parts 3 of the spring retaining andexpulsion plate being shown broken away and in section.

Figure 8 is an enlarged fragmentary detail transverse sectional viewthrough the forward end of the clipper taken substantially on the line8-8 of Figure 2.

Figure 9 is a View similar to Figure 8, the section being taken on theline 99 of Figure 2 looking in the direction of the arrows.

Figure 10 is a view similar to Figure 1 but showing another preferredform of the invention, the figure being shown in section and takensubstan tially on the line ill-l9 of Figure 11 looking in the directionof the arrows.

Figure 11 is a fragmentary side elevational view of the modified form ofthe clipper with parts thereof in section, the section being takensubstantially on line lI-ll of Figure 10 looking in the direction of thearrows.

Figure 12 is a fragmentary sectional View similar to Figure 11butshowing the spring retaining plate moved to its inoperative positionby its operating button.

Figure 13 is a top plan view of the cutter head assembly.

Figure 14 is a View partly in side elevation and partly in section ofthe cutter head assembly, the part in section being taken substantiallyon the line |4l4'of Fig re 13.

Figure 15 is a fragmentary longitudinal sectional view through theclipper body, the cutter head'assembly being removed from said body.

- Figure 16 is a fragmentary sectional view taken substantially on theline |6l6 of Figure 15.

Figure 17 is a fragmentary transverse sectional view taken substantiallyon the line l'!l1 of Figure 11 looking in the direction of the arrowsand illustrating the means for adjusting the tension on the movablecutter blade.

Figure 18 is a fragmentary transverse sectional view taken on the linel8-l8 of JFigurell looking in the direction of the arrows.

Figure 19 is a fragmentary transversesectional view' taken on the line(El-I9 of Figure 11 looking in the direction of the arrows.

Referring to the drawings in detail, wherein similar referencecharacters designate corresponding parts throughout the several viewsthe letter C generally indicates the hair clipper and the same includesa cutter head assembly. l adapted to be detachably connected with'the'clipper body ll. g

The clipper body II can have its forward end open for receiving thecuttenhead assembly i0- and this body also receives the means forretaining the cutter head assemblyrin position; and the mechanism (notshown) for operating the movable blade of the cutter head assembly.

The body ll'can be ofany desired shape or form best suited for thepurpose intended and can be made of upper and lower sections l2 and [3.The lower section includes a bottom wall [4 having its inner face formedsubstantially flat and smooth.

The cutter head assembly IE! includes the stationary cutter blade orcomb plate and the movable cutter blade IS. The blades are so formed andassociated that the blade I6 is mounted for free movement back and forthover the bladelS.

In accordance with my invention I rigidly secure to the inner face ofthe stationary blade I5:

ward end of the tang is provided with an attaching foot l8 which can beriveted or otherwise fastened to the blade i5 as at i9. The foot 18extends slightly forward of the rear edge of the stationary blade 5. Thetang i? adjacent to its rear end is provided with a centrally disposedkeeper slot 20. This slot terminates short of the rear edge of the tang.Extending over the tang is a spring plate 2|. This plate has formedthereon a pair of forwardly extending spring arms 22. The forward endsof the arms are in turn fastened to the movable blade i6 and function tohold the movable blade centered and down against the stationary bladeiii. The spring plate 2! is provided with a guide and brace plate 23 andthe plate 23- is fitted flat against the spring plate 2| and has formedon its side edges depending ears 24-for embracing the opposite sides ofthe resilient arms 22. The rear ends of the plates are rigidly securedto the tang on opposite sides of the keeper slot 2!] by suitablefastening elements, such as rivets 25. The guide and brace plate 23 hasalso struck out therefrom a pair of spaced upwardly extending guide lugs25, the purpose of which will be hereinafter set forth. The plates 2|and 23 have rotatably extending therethrough adjacent to their forwardends, an adjusting screw 21 which is threaded into a boss 28 struck upfrom the tang H. Obviously, by

adjusting the screw 21 up and down on the tang, the tension of thespring plate 2| can be adjusted for holding the movable blade IG-againstthe stationary blade 15 with varying pressures. Attention is directed tothe fact that the rear edges of the tang and the plates 2i and 23 arebeveled upwardly and forwardly asat 29 for a purpose, which will alsolater appear.

The means for releasibly supporting the clipper head assembly ID on thebody I I includes a combination guide and latch plate so. This plate 30is secured fiat against the bottom wall 14 ofthe body, preferably byfront and rear screws 3 l'. The plate has struck up from itslongitudinal sideedges guide flanges or walls 32 and hence the plate 30is of a somewhat U shape in cross section. The flanges 32 incline towardone another as they approach the rear edge of the plate and theseflanges or walls 32 form a guide way for receiving the tang H of theclipper head assembly In.

The upper edges of the flanges 32 have formed thereon outwardlyextending supporting flanges a rearwardly extending tang audit is to benoted that the tang extends substantially at an obtuse angle tothestationary blade i5. The for- 33. These flanges 33 gradually inclineupwardly from the front of the plate toward the rear of the plate. Theextreme forward end of the plate 39 adjacent to its side edges hasformed thereon forwardly projecting upwardly extending arms 34. The armsare so formed in conjunction with the plate to provide front and rearlugs 35 and 35. The, outer side edges of the arms 34 also have formedthereon depending lugs 31. These arms are adapted to spring over andengage the attaching foot H! of the tang I! when the clipper headassembly is inits operative position on the clipper body and the lugs 35engage over the front edge of the foot and the lugs 36 engage over therear edge of the foot. The-side lugs 31 engage over the end edges of thefoot. The front edge of the plate 30 itself can be provided with adepending lug 3B for engaging against the rear edge of the rear endthereof and that the extreme rear end of the latch nose has an abruptshoulder 40.

Carried by the combined guide and latch plate is a spring retaining andexpulsion plate 4|. This plate 4| is of a substantially U shape in planand includes resilient side arms 42 and a connecting rear cross bar 43.The resilient arms 42 extend forwardly and downwardly and the front endsthereof are provided with attaching feet 44 which are rigidly fastened,such as by rivets 45, to guide and latch plate 30 directly in front ofthe inclined lateral flanges 33 of the guide and latch plate. Hence, therear cross bar 43 extends transversely across the plate 30 directly inrear of the latch nose or dog 39. The resilient arms 42 normally holdthe cross bar 43 with spring pressure down across the lateral flanges33. The spring retaining and expulsionplate 4| also includesa centrallydisposed resilient guide tongue 46 and this tongue is formed on thecross bar 43 and lies between the resilient arms 42. Struck out from thetongue is a depending teat 47 for a purpose, which will also laterappear.

In associating the cutter head assembly ID with the body II, the tang I1is slid into the body H and into the combined guide and latch plate 36.The converging flanges 32 function to guide the tang into position andto insure the aligning of the tang with the central axis of the body andas the tang is pressed inwardly, the tongue 46 1 will be receivedbetween the guide lugs 26 formed on the guide and spring retaining plate23 and this further guides the tang in correct position and the lugs 26prevent lateral shifting of the tongue 46. The beveled edges 29 of thetang and the plates 2| and 23 serve as means for gradually ridingagainst the teat 41 to raise the spring tongue and the rear end of thespring retaining and expulsion plate 4| upwardly against the tension ofthe resilient arms 42. As the tang rides over the latch nose 39 and thekeeper slot 20 registers with the nose, the spring retaining andexpulsion plate 4| will urge the tang downward with its rear end againstthe upper surface of the guide and latch plate 30. The latch nose beingdisposed in the keeper slot will now prevent forward movement of thetang and the cutter assembly. When the cutter assembly reaches itsoperative latched position, the arms 34 on the guide and keeper platewill snap over the foot l8 of the tang I! and the cutter assembly willbe firmly held in correct operative position on the clipper body II.

If desired and preferred, the tang adjacent to its forward end can beprovided with depending headed rivets 48 and the heads of these rivetsare adapted to ride on the upper face of the guide and latch plate andnormally tend to hold the forward blade end of the cutter assembly Illtilted upwardly. These rivets also function to eliminate objectionablefriction between the tang and the guide and latch plate and act asspacers between the tang and guide and latch plate.

When it is desired to release the cutter assembly l0, it is merelynecessary to grasp the clipper body H in the hand and press the thumb onthe extreme front of the cutter assembly. B pressing downwardly with thethumb on the cutter assembly in the direction of the arrow shown inFigure 3, the cutter assembly will rock on the headed rivets 48, and theattaching foot of the tang I! will swing away from the arms 34 of theguide and latch plate and the rear end of the tang will be elevatedagainst the tension of the spring retaining and expulsion plate 4| abovethe on its rear edge, as shown in Figure I4,

latch nose 39. The tension of the strin plate 4| increases as the sameis forced upwardly by the tang and when the tang rides above the latchnose the teat 41 will engage the inclined or beveled faces 29 of thetang l1 and the plates 2| and 23. Consequently a. forward spring thrustwill be exerted on the clipper assembly and this combined with thedownward pressureof the thumb will shoot or force the cutter assemblyforwardly and out of the clipper body.

In Figures 10 to 19 inclusive, I have shown a simplified form of theinvention, in which pro-' vision is made for manually operating thelatch-- ing and releasing spring by means of a finger button or thelike.

In this form of my invention, a clipper body or casing 49 is provided,preferably formed in. upper and lower sections 50 and 5|, so that easyaccess may be had to the operating mechanism. (not shown). The forwardend of the casingdetachably receives and supports the cutter head.assembl 52.

The lower section 5| of the casing at its for-- ward end is providedwith a pocket or chamber' 53 for the reception of the retainingmechanism 54 for the cutter head assembly 52 and the re tainingmechanism closes the lower end of the pocket or chamber 53. It is to benoted that the lower half section 5| of the casing can be provided withan upwardly and outwardly curved wall 55, which forms the top wall ofthe pocket or chamber 53. through the forward end of the body or casing49 of the clipper.

Referring to the cutter head assembl 52, the

same includes a stationary cutter or comb blade- 56 on which is mountedfor reciprocatory movement the movable cutter blade 51. Rigidly securedto the stationary blade 56 in the rear of the movable blade 51 is anattaching foot 58 carrying the angularly extending latching tang 59. Theinner end of the tang 59 is preferably slightly curved upwardly as at 60to form a guide face, the purpose of which will later appear.

, The tang itself is provided centrally with a slot 6| which forms a.keeper opening. The opposite ends of the attaching foot 58 are bent atrightv angles away from the stationary blade 56 to provide guide andholding ears 62.

Arranged on the foot 58 is an angle bracket 63 and this bracket hasrigidly secured to its outstanding flange 64 a substantially U shapedtension spring 65. The legs of the spring 65 carry the movable blade 51and normally hold the blade down with proper tension against thestationary blade.

Means is provided for holding and adjusting the position of the anglebracket on the foot so that the tension of the opposite legs of thespring bearing on the movable blade can be adjusted. As shown, the lowerflange 66 of the angle bracket rotatably receives adjusting screws 6!and these screws are threaded into the foot 58. The central portion ofthe foot has threaded therein an adjusting screw 68. By loosening thecentral screw 68 and by tightening or loosening either one or both ofthe screws 61 the angle bracket can be held straight and parallel withthe foot 58 and at different levels thereto or tilted to one side ortheother on the screw 68. This allows the desired tension to be given tothe movable blade and more or less tension at the opposite ends thereof,as may be desired. If desired all of the screws can be adjustedoutwardly so as to tilt the bracket The pocket also opens out Theretaining mechanism 54' for the cutter head assembly 52 includes a mainsupporting plate 69. This plate can be secured t the lower surface ofthe casing 49' b means of fastening screws 'lfi and thispla-te closesthe lower part of the chamber or pocket 53. As heretofore brought out.If: desired, an ornamental cover plate H can be provided t go over'themain supporting plate 69 and this cover plate'can be held in place bythe screws 10. The forward end of the main supporting plate 60 isprovided with spaced parallel longitudinally extending slots 12 andthe'portion of the plate between the slots is bent downwardly andforwardly to provide an inclined guide tongue 13. Secured to the plateat its forward end is a bridge strap Iii and this bridge strap can beheld in its desired spaced relation to the tongue '13 and the supportingplate 59 by shims E5. This forms a guide for the initial insertion of.the tang into the supporting mechanism 54 andthe bridge strap has formedon its rear edge an upwardly extending stop flange 16. The purpose ofthis flange is to prevent the inadvertent insertion of the tang into thepocket or chamber 53 above the bridge strap H.

The plate 69 is reduced intermediate its ends and this reduced portionis provided with a pair of right angularly extending spaced parallelguide lugs 11. These guide lugs engage the side walls of the pocket andform a brace for the supporting plate 69 and prevents lateral shiftingthereof. Formed on the plate 69 between the lugs 11 is the latch nose'18. The latch nose is provided with an upper inclined guide surface 19and an abrupt lock shoulder 88. Riveted or otherwise secured at its'rearend to the upper surface of the main plate 69 is a spring retainingplate 8|. This spring plate 8i extends forwardly and upwardly from therear end of the main plate 69 and extends over the latch nose i3.Secured to the spring plate 8| in rear of the latch nose is a fingerbutton 82 and this button extends through guide openings 83 formed inthe main supporting plate 59 and the cover' plate 'il. Hence by pressinginwardly on the button 82 the spring Bl can be flexed and moved awayfrom the nose l8; The spring itself is preferably curved upwardly as at841 beyond the button 82.

In use of this form of my clipper the cutter assembly head 52 is takenin the hand and the tang 59 is inserted within the supporting structure54 between the bridge strap 14 and the guide tongue 13. The tang 59 willride over the nose I8'and will push upwardly on the spring plate 8! andconsequently the spring plate 8! normally functions to urge the tangdownwardly.' As the tang rides'over the latch nose (8 the spring willforce the tang downwardly and the latch nose into the keeper opening 6|.This will securely lock and hold the cutter assembly on the clipper body49.

To release the cutter head assembly, forward and downward pressure canbe exerted on the tip end of the cutter assembly for rocking the tang onthe guide tongue 13 against the tension of the spring plate 8|. As thetang is raised above the latch nose is the spring plate will tend toforce the tang forwardly and the cutter as-- sembly can be instantlyremoved.

If so desired, the cutter assembly 52 c an be released by placingpressure on the finger button 82 which will lie? the spring so that theuser can pull forwardly and downwardly on the cutter head as embly willpermit the removal of the-assembly.-

From the'f'o'regoing' description, it can be seen that I have providedan exceptionally simple plate rigidly secured to the body, a tangrigidly connected with the assembly and movable into and out of latchingengagement with the plate, said plate and said tang having interengaginglatch and keeper means, aretaining andexpulsion spring mechanism forguiding the tang into latching engagement with the plate and for holdingthe tang into latching engagement with the plate against the tension ofthe spring, the

tang being rockable on the plate for movement out of latching engagementwith the plate, said spring functioning to urge the tang and assemblyaway from the body when the tang is rocked from out of latchingengagement with the plate.

2; In a hair clipper, a body, a cutter head assembly, and means fordetachably connecting the assembly with the body including a combinedguide and latch plate connected with said body, a tang carried by thecutter assembly movable into and out of the combined guide and latchplate? rearwardl converging upright flanges on the sides of the platefor guiding the tang into proper position on the plate, said platehaving a latch nose and said tang having a keeper slot adapted toreceive said nose, and spring means normally holding the tang down onthe plate in latched position therewith, the tang being rockable on theplate against the tension of said spring means for moving the tang fromout of latching engagement with said plate.

3. In a hair clipper, a body, a cutter head a assembly, and means fordetachably connecting the assembly with the body including a combinedguide and latch plate connected with said body, a tang carried by thecutter assembly movable into and out of the combined guide and latchplate, rearwardly converging upright flanges on the sides of the platefor guiding the tang into proper position on the plate, said platehaving a latch nose and said tang having a keeper slot adapted toreceive said nose, and spring means normally holding the tang downon'the plate in latched position therewith, the tang being rockable onthe plate against the tension of said-spring means for moving the tangfrom out of latching engagement with said plate, said tang having abeveled face against which the spring means is adapted to bear when thetang is rocked for pushing said tang forwardy.

4. Ina hair clipper, a body, a cutter head assembly and means fordetachably connecting the cutter head assembly with the body, said meansincluding a combined guide and latch plate secured tothe body, arearwardly projecting tang having an attaching foot at its front endsecured to the cutter assembly, said tang being movable into the plate,a latch nose on W said plate and said tang having a keeper slot forreceiving the latch nose, spring means carried'bytheplate for normallyholding thetang.

I in latched positionwith the nose, and forwardly extending'arms on saidplate adapted to engage the feet when the tang is in latched engagement'with the nose.

5. In a hair clipper,a body, a cutter head assembly, and means fordetachably connecting the cutter head assembly with the body, said meansincluding a combined guide and latch plate secured'tothe body, arearwardly projecting tang having anattaching foot at its frontend-secured to the outer assembly, said tang being movable into theplate, a latch nose on said plate and said tang having a keeper slot forreceiving the latch nose, spring means carried by the plate for nor-'mally holding the tang in latched position with the nose, and forwardlyextending arms on said plate adapted to engage the foot when the tang isin latched engagement with the nose, said tang being rockable on theplate against the tension of said spring means to a released positionout of engagement with the latch nose and the arms, said spring urgingthe tang and cutter assembly forward when the tang is rocked to areleased position.

6. In a hair clipper, a body, a clipper head assembly, and. meansdetachably connecting the cutter head assembly with the body including acombined lat-ch and guide plate rigidly secured to the body, a tang onsaid assembly projecting rearwardly therefrom movable into the plate,said plate having a latch nose provided with a front upwardly andrearwardly inclined face and rear abrupt stop face, said tang beingslidable over the latch nose and having a keeper slot for receiving thenose, and spring means normally urging the tang down toward the plateand over the nose, said tang being rockable on the plate against thetension of said spring means for moving the tang from out of latchingengagement with the nose and for increasing the tension of the spring,said spring bearing against the tang for pushing the same forwardly.

'7. In a hair clipper, a body, a unitary cutter head assembly includinga stationary blade and a movable blade, a rearwardly extending tanghaving a keeper opening adjacent to its rear end, a blade tension springplate secured at the rear end thereof to the tang having forwardlyextending resilient arms secured to the movable blade, a reinforcingplate fitted over the: spring plate and secured at its rear end to thespring plate and the tang, said reinforcing plate having depending earsengaging the opposite sides of the spring plate adjacent to the rearends of the resilient arms, means adjustably connecting the spring plateand the reinforcing plate to the tang, a combined guide and latch platesecured to the body for receiving the tang having a latch nose providedwith a front rearwardly and upwardly inclined face and a rear abruptface, the nose being received in the keeper opening upon the insertionof the tang into the plate, spring means normally urging the tang downover said nose, said tang being rockable on the forward end of the plateto move the tang from out of latching engagement with the nose againstthe tension of said spring means, the tang, spring plate and reinforcingplate having an upwardly and forwardly beveled face, said spring meansbeing adapted to bear against said face upon the rocking of the tang toa released position from the nose, whereby said spring meanswill,normally urge the tang forwardly of the combined guide and latchplate.

8. In a clipper, a body having a pocket in its forward end, a cutterhead assembly, and

means for detachably connecting the cutter head assembly with the bodyincluding combined latch and guide plates rigidly secured to the bodyand closing the lower end of the pocket, a latch tongue on saidplate, atang rigidly secured to the cutter head assembly movable into the pocketover the plate and its latch nose, spring means carried by the plate fornormally urging the tang into latching engagement with the nose, and athumb button for moving the spring means from out of engagement with thetag.

9. In a clipper, a body having a pocket in its forward end, a cutterhead assembly, and means for detachably connecting the cutter headassembly with the body including combined latch and guide plates rigidlysecured to the body and closing the lower end of the pocket, a latchtongue on said plate, a tang rigidly secured to the cutter head assemblymovable into the pocket over the plate and its latch nose, spring meanscarried by the plate for normally urging the tang into latchingengagement with the nose, and a thumb button moving the spring meansfrom out of engagement with the tang, guide lugs on the cutter headassembly for engaging the inner surfaces of the side walls of thepocket.

10. In a clipper, a body having a pocket opening out through its forwardend, a cutter head assembly including a rearwardly extending tang havinga keeper opening, and attaching foot on said tang rigidly secured to theassembly, guide lugs formed on the end of the foot, and means fordetachably connecting the cutter head assembly with the body including acombined guide and latch plate rigidly secured to the body and formingthe lower wall for the pocket, a latch nose formed on said plate, aforwardly and downwardly inclined guide tongue on the forward portion ofsaid plate, a guide and bridge strap secured to the forward end of theplate in spaced relation to the tongue, said tang being insertable intothe pocket and over the plate between the tongue and bridge strap, aspring normally urging thhe tang down against said plate whereby thelatch nose will engage in said keeper opening when the tang is insertedto its full extent in the pocket, means for flexing the spring to movethe same above the tang, and said guide lugs being adapted to engage theinner surfaces of the side walls of the pocket when the tang is insertedto its full extent in said pocket.

11. In a clipper, a body having a pocket opening out through its forwardend, a cutter head assembly including a rearwardly extending tang havinga keeper opening, and attaching foot on said tang rigidly secured to theassembly, guide lugs formed on the end of the foot, means for detachablyconnecting the cutter head assembly with the body including a combinedguide and latch plate rigidly secured to the body and forming the lowerwall forthe pocket, a latch nose formed on said plate, a forwardly anddownwardly inclined guide tongue on the forward portion of said plate, aguide and bridge strap secured to the forward end of the plate in spacedrelation to the tongue, said tang being insertable into the pocket andover the plate between the tongue and bridge strap, a spring normallyurging the tang down against said plate whereby the latch nose willengage in said keeper opening when the tang is inserted to its fullextent in the pocket, means for flexing the spring to move the sameabove the tang, and said guide lugs being adapted to engage the innersurfaces of the side walls of the pocket when the tang is inserted to 11its full extent in said pocket, and means for preventing the insertionof the tang above the bridge strap.

HENRY E. MELTZER.

REFERENCES CITED The following references are of record in. the fil'e ofthis patent:

Number 12 UNITED STATES PATENTS Name Date Redman Sept. 9, 1924 DremelJune 1.7, 1930 Dremel May 17, 1932 Boerger Apr. 13, 1937 Oster Dec. 5,1939 Boerger Sept. 1, 1942 Cromonic Dec. 22, 1942

